v3.26.3
DEBT AND CREDIT FACILITIES - LINES OF CREDIT (Details)
$ in Millions, $ in Millions
 1 Months Ended 9 Months Ended
Aug. 31, 2026
USD ($)
Sep. 30, 2026
USD ($)
lineOfCredit
Sep. 30, 2026
MXN ($)
lineOfCredit
Line of Credit Facility [Line Items]      
Total facility   $ 10,000  
Primary committed lines of credit | lineOfCredit   8  
Available unused credit   $ 7,966  
Ratio of indebtedness to net capital (in percent)   0.65 0.65
Commercial paper outstanding      
Line of Credit Facility [Line Items]      
Line of credit outstanding   $ (1,690)  
Letters of credit outstanding      
Line of Credit Facility [Line Items]      
Line of credit outstanding   (344)  
Other Sempra      
Line of Credit Facility [Line Items]      
Total facility   4,000  
Available unused credit   2,577  
Other Sempra | Commercial paper outstanding      
Line of Credit Facility [Line Items]      
Line of credit outstanding   (1,423)  
Other Sempra | Letters of credit outstanding      
Line of Credit Facility [Line Items]      
Line of credit outstanding   0  
San Diego Gas and Electric Company      
Line of Credit Facility [Line Items]      
Total facility   1,500  
Available unused credit   $ 1,309  
Ratio of indebtedness to net capital (in percent)   0.65 0.65
San Diego Gas and Electric Company | Commercial paper outstanding      
Line of Credit Facility [Line Items]      
Line of credit outstanding   $ (191)  
San Diego Gas and Electric Company | Letters of credit outstanding      
Line of Credit Facility [Line Items]      
Line of credit outstanding   0  
Southern California Gas Company      
Line of Credit Facility [Line Items]      
Total facility   1,200  
Available unused credit   $ 1,124  
Ratio of indebtedness to net capital (in percent)   0.65 0.65
Southern California Gas Company | Commercial paper outstanding      
Line of Credit Facility [Line Items]      
Line of credit outstanding   $ (76)  
Southern California Gas Company | Letters of credit outstanding      
Line of Credit Facility [Line Items]      
Line of credit outstanding   $ 0  
SI Partners and IEnova      
Line of Credit Facility [Line Items]      
Number of lines of credit | lineOfCredit   3 3
SI Partners and IEnova | SI Partners and IEnova Committed Line Of Credit Due September 2027      
Line of Credit Facility [Line Items]      
Total facility $ 500 $ 300  
Available unused credit   300  
SI Partners and IEnova | SI Partners and IEnova Committed Line Of Credit Due August 2028      
Line of Credit Facility [Line Items]      
Total facility   1,500  
Available unused credit   1,500  
SI Partners and IEnova | SI Partners and IEnova Committed Line Of Credit Due December 2028      
Line of Credit Facility [Line Items]      
Total facility   1,000  
Available unused credit   1,000  
SI Partners and IEnova | Commercial paper outstanding | SI Partners and IEnova Committed Line Of Credit Due September 2027      
Line of Credit Facility [Line Items]      
Line of credit outstanding   0  
SI Partners and IEnova | Commercial paper outstanding | SI Partners and IEnova Committed Line Of Credit Due August 2028      
Line of Credit Facility [Line Items]      
Line of credit outstanding   0  
SI Partners and IEnova | Commercial paper outstanding | SI Partners and IEnova Committed Line Of Credit Due December 2028      
Line of Credit Facility [Line Items]      
Line of credit outstanding   0  
SI Partners and IEnova | Letters of credit outstanding | SI Partners and IEnova Committed Line Of Credit Due September 2027      
Line of Credit Facility [Line Items]      
Line of credit outstanding   0  
SI Partners and IEnova | Letters of credit outstanding | SI Partners and IEnova Committed Line Of Credit Due August 2028      
Line of Credit Facility [Line Items]      
Line of credit outstanding   0  
SI Partners and IEnova | Letters of credit outstanding | SI Partners and IEnova Committed Line Of Credit Due December 2028      
Line of Credit Facility [Line Items]      
Line of credit outstanding   0  
Port Arthur LNG I | Port Arthur LNG I Committed Line Of Credit Due March 2030      
Line of Credit Facility [Line Items]      
Total facility   200  
Available unused credit   113  
Port Arthur LNG I | Commercial paper outstanding | Port Arthur LNG I Committed Line Of Credit Due March 2030      
Line of Credit Facility [Line Items]      
Line of credit outstanding   0  
Port Arthur LNG I | Letters of credit outstanding | Port Arthur LNG I Committed Line Of Credit Due March 2030      
Line of Credit Facility [Line Items]      
Line of credit outstanding   (87)  
Port Arthur LNG II | Port Arthur LNG II Committed Line Of Credit Due September 2030      
Line of Credit Facility [Line Items]      
Total facility   300  
Available unused credit   43  
Port Arthur LNG II | Commercial paper outstanding | Port Arthur LNG II Committed Line Of Credit Due September 2030      
Line of Credit Facility [Line Items]      
Line of credit outstanding   0  
Port Arthur LNG II | Letters of credit outstanding | Port Arthur LNG II Committed Line Of Credit Due September 2030      
Line of Credit Facility [Line Items]      
Line of credit outstanding   $ (257)  
SI Partners      
Line of Credit Facility [Line Items]      
Maximum adjustment EBITDA allowed   5.25 5.25
ECA LNG Phase 1 | Uncommitted line of credit      
Line of Credit Facility [Line Items]      
Total facility   $ 100  
Line of credit, amount outstanding   $ 27 $ 486
Credit adjustment spread   0.10%  
ECA LNG Phase 1 | Uncommitted line of credit | Interbank Equilibrium Interest Rate      
Line of Credit Facility [Line Items]      
Variable percentage rate (in percent) 1.40%    
ECA LNG Phase 1 | Uncommitted line of credit | Secured Overnight Financing Rate (SOFR)      
Line of Credit Facility [Line Items]      
Variable percentage rate (in percent) 1.50%